Elevator-carrier.



No. 632,!88 Patented Aug. 29, I899. E. J. HOOKER.

ELEVATOR CARRIER.

(Application filed Oct. 28, 1898.)

{No Model.)

8 Y EL N M U A 1115 norms PEYEHS 0o. "momma" wuumumu, n cy UNITED STATESPATENT OFFICE.

EGBERT J. HOOKER, OF POULTNEY, VERMONT.

ELEVATOR-CARRIER.

SPECIFICATION forming part of Letters Patent N 0. 682,118, dated August29, 1899.

Application filed October 28, 1898. Serial No. 694,811. (No modelh Toall whom it may concern:

Be it known that I, EGBERT J. HOOKER, of Poultney, in the county ofRutland and State of Vermont, have invented a new and ImprovedElevator-Oarrier, of which the following is a full, clear, and exactdescription.

The object of my invention is to provide a carrier especially adaptedfor use in quarries, the carrier being so constructed that it willtravel upon an elevated track or cable with more or less speed, asdesired, and to provide a means of stopping the carrier at any desiredpoint upon the cable or track.

Another object of the invention is to provide a brake for the carrierthat will not in the least interfere with the cable or track, the brakebeing so constructed as to operate independently of the cable.

Another object of the invention is to construct the carrier in a simple,durable, and economic manner and so that when the load is in dumpingposition the carrier will automatically be held stationary.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings,forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of the improved carrier and a cable adaptedto support the same, the carrier being shown as stationary on the cable.Fig. 2 is a side elevation of the carrier, drawn on a larger scale, thebrake having been released from the carrier, enabling the carrier totravel readily upon the cable; and Fig. 3 is a horizontal section takensubstantially on the line 3 3 in Fig. 2.

A is a cable which serves in the capacity of a track, the cable being inan inclined position, and the said cable is attached at its end touprights B and B or equivalent supports, the attachment between thecable and supports being made in any suitable or approved manner.

C represents a buffer which is secured upon the cable or track A at ornear its lower end. This buffer consists, preferably, of two end plates10, connected by cross-bars 11 and by centrally-located two-part sleeves12, the sleeves being secured in any suitable or approved manner to thetrack or cable A. The

lower cross-bar connecting the ends of the.

buffer is arranged to support a pulley 13, over which pulley a rope or acable 1 1 is passed, provided with aweight 15 at its lower end, the bodyportion of the rope or cable 14 being carried parallel with the track ormain cable A and secured by a clamp 16 or its equivalent to the uppersupport B for the said main cable or track. The rope or cable 14 acts inthe nature of a tension or check cable, being adapted to regulate themovement of the carriage D. This carriage is supported by the main cableor track A, and the frame of the said carriage preferably consists ofparallel upper cross-bars 17, attached to vertical end bars 18, the endbars being usually connected at the top and at the bottom or at bothextremities, and the end bars 18 are connected by central parallelcross-bars 20 and lower parallel cross-bars 19.

Track-wheels 21 are journaled in the upper portion of the frame of thecarriage, and these track-wheels are adapted to travel upon the cable ortrack A, as shown in both Figs. 1 and 2,-and between the intermediatecrossbars 20 a brake-wheel 22 is mounted to revolve, which brake-wheelis preferably provided with peripheral spurs 23, having their outersurfaces beveled or tangential to the periphery of the brake-wheel andtheir inner faces more or less straight or at right angles to theperiphery of the brake-wheel, as is particularly shown in Fig. 2.

A lever 24 is pivoted at one side of the frame between the upper and theintermediate crossbars, the said lever being located between outerupright bars 24!, parallel with one of the end bars 18, as shown in Fig.3, and an upright bar 21, which is parallel with the vertical brace-bars21 (Shown in Figs. 2 and 3.) The end of the lever 24 which is carriedpast the vertical brace-bars 21 is connected by a link 26 with shiftingbars 27, located at the bottom portion of the frame, the shifting barsbeing pivoted to the lower portion of the forward upright end bars 18and having vertical and guided movement upon the rear upright end barsof the frame, as shown in Fig.

2. The lever 24 is provided with a projection 25, which projection whenthe lever and the shifting bars are in their lower position will engagewith one or the other of the lugs 23 on the brake-wheel 22. The checkrope or cable 14 is passed once around the wheel or drum 22, as shown indotted lines inFigs. 1 and 2.

At the lower portion of the frame of the device two guide-pulleys 28 and29 are mounted, and below the said frame a snatch-block 30 is located,being journaled in a frame 31, carrying a hook 32 or equivalent device.The upper end of the snatch-block is arranged for contact with theshifting bars 27. A cable or a rope 33 is attached to the upper end ofthe frame of the snatch-block, the said cable or rope being passedaround the pulley 28, thence around the pulley of the snatch-block andover the second guide-pulley 29, and the rope or cable 33 is carriedfrom the guide-pulley 29 to the ground, to be operated from that point.

The cable 33 is adapted to raise and to lower the snatch-block. When thesnatch-block is in its lowest position that is, the position to which itwill be carried to receive its load-- the brake-lever 24 will be inengagement with a lug on the retarding or brake wheel 22, and when thesnatch-block, after having received its load, is carried upward to suchan extent that it engages the brake-bars 27, as shown in Fig. 2, thebrake-lever will be carried out of engagement with the brake-wheel andthe carriage will be free to travel along the main cable or track A.lrVhen the carriage has reached a point over the place where the load isto be discharged, the rope or cable governing the snatchblock isslackened, whereupon the shifting bars 27 will drop downward and thelever 24 will be brought in engagement with the brake or check wheel 22,stopping the carriage and permitting the load to be readily discharged.

The stop (3 will limit the travel of the carrier and serve also as asupport for the pulley of the tension-cable 14 and may be given anyposition upon the main cable A. While the stop 0 may be utilized tosupport the car rier either in dumping or in loading position, thecarrier may be held stationary independent of the stop by the action ofthe stop-lever 24 relative to the brake-wheel 22, since it is obviousthat as soon as the frame 21 of the snatch-block raises the shiftingbars 27 the stop-lever is disengaged from the brake-wheel and thecarrier is free to travel; but whenever the frame of the snatch-block islowered either for loading or for unloading the shifting bars will drop,causing the stop-lever to drop also and its projections 25 to enterbetween or be brought in engagement with the nearest lugs 23 on thebrake-wheel 22. In this manner the carriage is held stationary at anypoint between the stop C and the opposite end of the cable untilreleased by the action of the frame of the snatch-block upon the liftingbars when said frame has been brought to its highest point. Thesnatch-block is raised by drawing upon the rope or cable 33 and islowered by releasing the said cable, and when the block has been fullyelevated further tension upon the rope or cable 33 will draw thecarriage to a loading position, in

which position it will remain stationary as soon as the snatch-block ispermitted to drop.

The device is exceedingly simple, durable, and economic, and it isevident that the brake employed will in no manner interfere with themain track or cable and cannot under any possibility wear upon the same.

It is obvious that the brake-wheel will lock in both directions and thatit will be impossible for the carriage to move upon the cable until thedrop-wheel or snatch-block raises the shifting bars 27, and consequentlythe brake-lever 24. The brake-wheel may be placed either under or abovethe cable, as likewise the detaining-rope.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In a hoisting or conveying apparatus, a frame,trolley-wheels for the frame, a retaining-wheel located outof the pathof the trolley-wheels, a brake-lever arranged for engagement with saidretaining-wheel, and means for operating the brake-lever actuated by themovement of the support for the material to be carried, and a tensiondevice connected with a fixed support and with the retaining-wheel, asand for the purpose set forth.

2. The combination, with a trolley for hoisting or conveying apparatus,having a frame provided with wheels arranged for engagement with a cableor track, a retaining-wheel, a locking device for the retaining-wheel,and

a shifting mechanism for the locking device,

operated by the movement of the material to be carried, of a tensionrope or cable attached to a fixed support at one of its ends, saidtension rope or cable being carried around the retaining-wheel, and aroller-support for the opposite end of the tension rope or cable, theend of the tension rope or cable passing over the roller-support beingweighted, as and for the purpose set forth.

3. The combination, with trolley mechanism for hoisting and conveyingapparatus, of a trolley-frame, a retarding-wheel carried by the frame,means for retarding said wheel a brake-leverarranged forengagement withthe retarding-wheel, a shifting device connected engagement with theretarding-wheel a brakelever arranged for engagement with the projections on the retarding-Wheel, shifting bars located on the lowerportion of the trolleyframe and connected With the brake-lever, acarrying device located below the shifting bars, and means,substantially as described, for moving the carrying device to and fromthe shifting bars, for the purpose set forth. 5. The combination, with acable, a trolleyframe, supporting-wheels carried by the trolley-frameand arranged to travel on the cable, and a retarding-wheel journaled inthe trolley-frame below the cable, of a retardingcable secured at oneend and weighted at the other end, the retarding rope or cable beingcoiled around the retarding-Wheel, a brakelever arranged for engagementwith the retarding-wheel, a shifting device connected with thebrake-lever, a carrying mechanism, and means, substantially asdescribed, for bringing the carrying mechanism to an engagement with theshifting device and permitting the carrying mechanism to disengage fromthe shifting device,for the purpose specilied.

6. The combination, with a cable, a trolleyframe the supporting-wheelsof which are arranged to travel on the said cable, a retardingwheelhaving bearings in the trolley-frame below the said cable, theretarding-wheel bein g provided with peripheral projections, and abrake-lever arranged for engagement with the projections of theretarding-wheel, of a retarding-cable coiled around the retardingwheel,a shifting bar connected with the brake-lever, a snatch-block locatedbelow the shifting bar, guide-wheels carried by the trolley-frame andlocated above the shifting bar, and a fall-rope connected with thesnatchblock and carried to an engagement with the said guide Wheels, asand for the purpose specified.

EGBERT J. HOOKER. lVitnesses:

h/IICHAEL COSTELLO, FREDERICK S. PLATT.

